Cycles of Matter

Which of the following contains Carbon?

• Plants

• Animals

• Decomposers

• all living things contain carbon

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Photosynthesizing plants affect the carbon cycle by...

• Creating more carbon atoms

• Reducing the amount of carbon in the soil

• Absorbing CO2 from the atmosphere, lowering atmospheric levels of carbon

• None of the above; plants do not affect the carbon cycle

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

The burning of fossil fuels contributes to the carbon cycle in what way?

• Increases the amount of CO2 in the atmosphere

• Increases the amount of O2 in the atmosphere

• Decreases the amount of CO2 in the atmosphere

• Decreases the amount of O2 in the atmosphere

Tags

NGSS.MS-ESS2-1

Decomposers contribute to the carbon cycle in what way?

• They turn oxygen into CO2.

• They take carbon from living organisms and return it to the atmosphere as carbon dioxide.

• They turn CO2 into organic, living carbon molecules.

• They create organic carbon and keep it stored in the earth forever.

Tags

NGSS.MS-LS2-3

Choose the answer that best describes what this graph is showing.

• Atmospheric carbon dioxide levels have been steadily decreasing since 1960.

• Atmospheric carbon dioxide levels do not show a change over time.

• Atmospheric carbon dioxide levels were at their lowest levels in 1980.

• Atmospheric carbon dioxide levels have been steadily increasing since 1960.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Eutrophication is caused by what?

• Increase in CO2 in the atmosphere.

• Increase of nitrogen and phosphorous in lakes and estuaries.

• Driving our cars and using too many electronics.

• Increasing air and water temperatures on earth.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Where is Nitrogen found in our body?

• Bones

• Proteins

• Nucleic Acid(DNA)

• Hair

Tags

NGSS.HS-LS1-6

Which type of organism performs nitrogen fixation?

• Bacteria

• Viruses

• Humans

• Plants and phytoplankton

Examples of decomposers include:

• humans, dogs, and whales

• trees, tomato plants, and phytoplankton

• viruses

• fungi, worms, and bacteria

Tags

NGSS.MS-LS2-3

Phosphorous is the primary make-up of what cell part?

• Chloroplasts

• Mitochondria

• Cell membrane

• Ribosomes

Tags

NGSS.MS-LS1-2